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Cheap flights from Washington, D.C. to Singapore from S$ 626

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29-4. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SIN
3 Apr — 10 Apr1
1 adult

Cheap flight deals from Washington, D.C. to Singapore

Keep the following information in mind while searching for Washington, D.C. to Singapore flight deals. Data was last updated 29 March 2025.

Round-trip from

S$ 1,287

One-way from

S$ 626

Popular in

December

Cheapest in

November

Average price

S$ 1,527
Air Canada
  • Air Canada
  • 16-9-30-9
  • 4 total stops
  • 68h 26m total
  • Washington, D.C. to Singapore
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29-4
  • 29-4
  • 3 total stops
  • 33h 30m total
  • Washington, D.C. to Singapore
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (S$ 49 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (S$ 87 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2025
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Find flight deals from Washington, D.C. to Singapore

Cheapest flights from Washington, D.C. to Singapore
Explore the most affordable flight options available from Washington, D.C. to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 March 2025.

Tue 16-909:13IAD - SIN
2 stops33h 52mAir Canada
Tue 30-909:10SIN - IAD
2 stops34h 34mAir Canada
Deal found 26-3S$ 1,287
Mon 19-516:35DCA - SIN
2 stops50h 30mAir Canada
Tue 3-609:10SIN - DCA
2 stops35h 43mAir Canada
Deal found 27-3S$ 1,295
Wed 2-421:40IAD - SIN
1 stop32h 15mTurkish Airlines
Sun 6-423:10SIN - IAD
1 stop24h 35mTurkish Airlines
Deal found 27-3S$ 1,297
Fri 19-921:40IAD - SIN
1 stop32h 15mMultiple Airlines
Mon 20-1002:30SIN - IAD
1 stop25h 15mMultiple Airlines
Deal found 28-3S$ 1,303
Tue 1-421:00IAD - SIN
1 stop24h 00mQatar Airways
Sun 11-503:10SIN - IAD
1 stop24h 30mQatar Airways
Deal found 27-3S$ 1,349
Mon 2-618:50IAD - SIN
2 stops32h 55mSAUDIA
Wed 23-703:45SIN - IAD
1 stop24h 00mSAUDIA
Deal found 27-3S$ 1,370
Sun 11-522:05IAD - SIN
1 stop23h 35mEtihad Airways
Sat 24-521:10SIN - IAD
1 stop31h 00mEtihad Airways
Deal found 28-3S$ 1,380
Thu 8-507:17BWI - SIN
3 stops35h 48mMultiple Airlines
Thu 15-509:10SIN - BWI
3 stops34h 00mMultiple Airlines
Deal found 28-3S$ 1,389
Sun 20-421:00IAD - SIN
1 stop24h 00mJetBlue
Sat 3-503:10SIN - IAD
1 stop24h 30mJetBlue
Deal found 27-3S$ 1,431
Wed 7-513:30IAD - SIN
2 stops39h 50mIndiGo
Wed 14-519:45SIN - IAD
2 stops36h 00mIndiGo
Deal found 27-3S$ 1,466
Mon 14-421:00IAD - SIN
1 stop30h 45mAlaska Airlines
Mon 21-418:45SIN - IAD
1 stop32h 55mAlaska Airlines
Deal found 27-3S$ 1,494
Mon 31-317:59DCA - SIN
1 stop24h 46mUnited Airlines
Tue 15-409:00SIN - DCA
1 stop24h 30mUnited Airlines
Deal found 28-3S$ 1,589

Cheapflights Fare Finder

Customise your flight search to find flights from Washington, D.C. to Singapore that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 200,618 searches. Data last updated 29 March 2025.
Use the filters below to find and compare flights from Washington, D.C. to Singapore that are best for you.

Fly from

Washington, D.C.

Fly to

Singapore

Route

Depart

Return

Price

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 16-9

09:13-07:05

2 stops33h 52m

Singapore Changi

Tue 30-9

09:10-07:44

2 stops34h 34m

S$ 1,287

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Mon 19-5

16:35-07:05

2 stops50h 30m

Singapore Changi

Tue 3-6

09:10-08:53

2 stops35h 43m

S$ 1,295

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 6-5

13:30-17:55

1 stop40h 25m

Singapore Changi

Sat 17-5

23:10-19:45

1 stop32h 35m

S$ 1,299

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Fri 19-9

21:40-17:55

1 stop32h 15m

Singapore Changi

Mon 20-10

02:30-15:45

1 stop25h 15m

S$ 1,303

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 21-4

21:00-15:45

1 stop30h 45m

Singapore Changi

Tue 29-4

10:30-08:40

1 stop34h 10m

S$ 1,354

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 2-6

18:50-15:45

2 stops32h 55m

Singapore Changi

Wed 23-7

03:45-15:45

1 stop24h 00m

S$ 1,370

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 11-5

22:05-09:40

1 stop23h 35m

Singapore Changi

Mon 26-5

21:10-16:10

1 stop31h 00m

S$ 1,380

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Thu 8-5

07:17-07:05

3 stops35h 48m

Singapore Changi

Thu 15-5

09:10-07:10

3 stops34h 00m

S$ 1,389

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 20-4

21:00-09:00

1 stop24h 00m

Singapore Changi

Sat 3-5

03:10-15:40

1 stop24h 30m

S$ 1,431

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 7-5

13:30-17:20

2 stops39h 50m

Singapore Changi

Wed 14-5

19:45-19:45

2 stops36h 00m

S$ 1,466

Flights are sorted by cheapest return flights first.

Deals found on 27-3

Showing 1-10 of 60 results
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Best time to book a flight from Washington, D.C. to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from Washington, D.C. with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Singapore

Rainfall in Singapore by month

Plan your trip to Singapore by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Singapore ranges from 150.0 - 269.0 inches per month. December is typically the wettest month, when rainfall can reach 269.0 mm. July is typically the driest time to visit Singapore when rainfall is around 150.0 mm.

Temperature in Singapore by month

Plan your trip to Singapore by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Singapore, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 26.0 C).

Reviews of airlines servicing Singapore

Get insights into the airlines that provide service to Singapore. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Singapore. Reviews last updated 29 March 2025.
Peruse reviews from past customers who have flown with Japan Airlines, ANA and Asiana Airlines from Washington, D.C. to Singapore to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Entertainment

7.8

Boarding

8.4

Comfort

8.2

Overall

8.3

Food

7.7

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!
Japan Airlines
8.3
Very Good
1,440 reviews
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Entertainment

7.8

Boarding

8.4

Comfort

8.2

Overall

8.3

Food

7.7

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!
ANA
8.3
Very Good
829 reviews
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Entertainment

7.8

Boarding

8.4

Comfort

8.2

Overall

8.3

Food

7.7

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!
Asiana Airlines
8.2
Very Good
440 reviews
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Entertainment

7.8

Boarding

8.4

Comfort

8.2

Overall

8.3

Food

7.7

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!
Singapore Airlines
8.1
Very Good
1,285 reviews
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Entertainment

7.8

Boarding

8.4

Comfort

8.2

Overall

8.3

Food

7.7

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!
Delta
8.0
Very Good
7,897 reviews
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Entertainment

7.8

Boarding

8.4

Comfort

8.2

Overall

8.3

Food

7.7

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Singapore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Washington, D.C. to Singapore one-way?

    For one-way options, check prices for Turkish Airlines. According to our data, you can fly for as low as S$ 634. Users have also found prices from S$ 661 and S$ 678 on Air China and Air India, respectively.

  • What are the most popular routes from Washington, D.C. to Singapore?

    Most travellers choose Washington, D.C. Dulles Intl - Singapore Changi, Baltimore/Washington - Singapore Changi or Washington, D.C. Reagan-National - Singapore Changi when deciding on the best route from Washington, D.C. to Singapore.

  • Can I find deals for flights from Washington, D.C. to Singapore that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Singapore flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Singapore?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Singapore.

  • Can I find deals for business class flights from Washington, D.C. to Singapore?

    Yes. Cheapflights offers flight deals from Washington, D.C. to Singapore by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Washington, D.C. to Singapore

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Singapore flights

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Yes, we can. To see specific flights from Washington, D.C. to Singapore with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Washington, D.C. to Singapore become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Singapore from Washington, D.C. today and book when prices fit your budget.

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